body{
    background-color: darkseagreen;
    margin: 0px;
}
header{
    height: 150px;
    background-image: linear-gradient(green,white,red);
}
header img{
    position:absolute;
    top: 10px;
    right: 30px;         
    transition: all 3s ease-in-out;  
}
header img:hover{
    transform:rotate(1080deg);
}

header h1{
    color: black;
    line-height: 150px;
    margin:0 0 0 20px;
    text-align: center;
    font-size: 50px;
    font-family: cursive;
}
h2{
    color:black;
    line-height: 150px;
    margin:0 0 0 20px;
    text-align: center;
    font-size: 40px;
     font-family: cursive;
}

h3{
    color: crimson;
    font-size: 30px;
    font-family: cursive;
}
p{
    font-size: 20px;
     font-family:fantasy;
}
.center{
   display: block;
    margin-left: auto;
    margin-right: auto;
}

nav{
    padding: 15px;
    background-color:darkred; 
    position:sticky;
    top:0px;
}

nav ul{
    margin: 0px;
    
    
}
nav li{
    display: inline;
}
nav a{
    text-decoration: none;
    padding: 10px;
    color:white
}
nav a:hover{
    background-color: slategrey;
}
main{
    margin: 20px;
}
li{
    font-size: 20px;
    font-family:inherit;
}

 .button{
    background-color:azure;
    color:midnightblue;
     box-shadow: 5px 5px 2px #888888;
    padding:5px;
    border-radius: 12px;
    text-decoration: none;   
}
.button:hover{
    background-color: yellow;
}
footer{
    background-color: darkgrey;
    height: 85px;
}